Device for ascertaining the corrosiveness of a plastic melt
AssigneeFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
InventorsBernd Steinhoff, Dirk Lellinger, Hans Kothe
Life of this patent
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Abstract
A device for ascertaining the corrosiveness of a plastic melt, including a housing having a cavity to be filled with plastic melt; a first electrode made of a first material and a second electrode made of a second material, the first electrode and the second electrode each having a contact surface toward the cavity, the standard potential of the first material being higher than that of the second material, and the first electrode and second electrode additionally being connectable to each other via a measuring element for determining an electric current and/or an electric voltage between the contact surfaces.
Claims12
A device for ascertaining corrosiveness of a plastic melt, comprising:
- a housing having an inlet to receive the plastic melt and a cavity to be filled with the plastic melt such that the plastic melt can flow through the housing as the corrosiveness of the plastic melt is ascertained;
- and
- a first electrode made of a first material and a second electrode made of a second material, the first electrode and the second electrode each having a contact surface toward the cavity, the standard potential of the first material being higher than that of the second material, and the first electrode and the second electrode additionally being connectable to each other via a measuring element for determining an electric current and/or an electric voltage between the contact surfaces.
A machine, comprising:
- a device for generating plastic melt;
- and
- a device for ascertaining corrosiveness of the plastic melt coupled to the device for generating plastic melt, comprising:
- a housing having an inlet to receive the plastic melt from the device for generating plastic melt and a cavity to be filled with the plastic melt such that the plastic melt can flow through the housing as the corrosiveness of the plastic melt is ascertained;
- and
- a first electrode made of a first material and a second electrode made of a second material, the first electrode and the second electrode each having a contact surface toward the cavity, the standard potential of the first material being higher than that of the second material, and the first electrode and the second electrode additionally being connectable to each other via a measuring element for determining an electric current and/or an electric voltage between the contact surfaces.
A method for measuring corrosiveness of plastic melt, comprising:
- introducing the plastic melt into a cavity of a housing having an inlet to receive the plastic melt such that the plastic melt can flow through the housing as the corrosiveness of the plastic melt is ascertained;
- and
- providing a first electrode made of a first material and a second electrode made of a second material, the first electrode and the second electrode each having a contact surface toward the cavity, the standard potential of the first material being higher than that of the second material, and the first electrode and the second electrode additionally being connectable to each other by way of a measuring element, and an electric current and/or an electric voltage between the first and the second electrodes is ascertained.
Dependencies are inferred from the claim text.